//
//  Invoker.h
//  精通Objective-C
//
//  Created by 花强 on 2017/12/19.
//  Copyright © 2017年 花强. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol Invoker <NSObject>

@required
-(void)preInvoke:(NSInvocation *)inv withTarget:(id)target;

@optional
-(void)postInvoke:(NSInvocation *)inv withTarget:(id)target;

@end
